Ryzen AI Max+ 395 128GB vs H100 80GB SXM5 for Local LLMs
The H100 80GB SXM5 has about 1458% more memory bandwidth (3,350 vs 215 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 1458% faster on the H100 80GB SXM5. The Ryzen AI Max+ 395 128GB fits more of the catalog at Q4/8K — 51 vs 50 of 69 models (96 vs 80 GB VRAM). Largest model that fits the Ryzen AI Max+ 395 128GB but not the H100 80GB SXM5: DeepSeek-V4-Flash (158.1B). MSRP is $2,000 for the Ryzen AI Max+ 395 128GB vs $30,000 for the H100 80GB SXM5. MSRP is a launch list price, not live retail — Amazon prices move; click through for the current price. Not retail-shoppable: H100 80GB SXM5 (datacenter-class; cloud rental is the realistic way to use it). In the Q4/8K head-to-head below (62 shared models), the H100 80GB SXM5 posts the higher tok/s in 62 rows vs 0. Methodology.